What Can Be Concluded If Fred Agrees to Exchange Four

What can be concluded if Fred agrees to exchange four ginger snaps for one of Hazel's chocolate chip cookies?  

A)  Both Fred and Hazel are at least as well off as they were before the exchange. 
B)  Fred is better off than he was before the exchange, but Hazel is NOT. 
C)  Hazel is better off than she was before the exchange, but Fred is NOT. 
D)  Both Fred and Hazel are worse off than before the exchange.